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Licensed Mold Testing Companies in Plano, TX

16 mold testing (mold assessment) companies are listed for Plano, and every one holds a current Texas license, checked against TDLR on Oct 28, 2026. Compare Google reviews, then call two or three.

Area report · PlanoACO
Testing companies
16 licensed in the area
Based in Plano
6
Google reviews
11 of 16 matched
License check
TDLR Oct 28, 2026
Same-job rule
Hire mold removal separately
See the 16 companiesNeed mold removal? 20 licensed companies
Who's listed

Companies with a Plano address first, then the best-ranked others in the Dallas-Fort Worth area. Out-of-state license holders are on the statewide list.

How it's ranked

By Google reviews, with a pull toward average until a company has enough of them; companies without reviews follow, A to Z. Nobody can pay to move up.

What we checked

Each company's mold assessment company license is current in TDLR records. We don't verify insurance or work quality: how we verify.

Based in Plano

  1. Paragon Structural Engineering, LTD.

    Plano, Collin County · TDLR #ACO1300 · licensed until Dec 7, 2027

    Current license

    4.648 Google reviews

    Call (469) 892-7520WebsiteLicense report

  2. Envirocare Associates Inc

    Plano, Collin County · TDLR #ACO0110 · licensed until Mar 13, 2028

    Current license

    No Google reviews matched

    Call (972) 768-1235License report

  3. Farmer Environmental Group LLC

    Plano, Collin County · TDLR #ACO0190 · licensed until Apr 1, 2027

    Current license

    No Google reviews matched

    Call (972) 390-8014WebsiteLicense report

  4. Nelson Forensics, LLC

    Plano, Collin County · TDLR #ACO1173 · licensed until Jul 21, 2028

    Current license

    No Google reviews matched

    Call (469) 429-9000WebsiteLicense report

  5. Texas Mold Inspection Service

    Plano, Collin County · TDLR #ACO1090 · licensed until Apr 23, 2027

    Current license

    No Google reviews matched

    Call (972) 567-2664License report

  6. UL Verification Services Inc

    Plano, Collin County · TDLR #ACO1182 · licensed until Feb 21, 2027

    Current license

    No Google reviews matched

    Call (469) 410-1336License report

More in the Dallas-Fort Worth area

The 10 best-ranked licensed mold testing companies elsewhere in the metro. See all of them on the Dallas mold testing page.

  1. Property Inspection Group LLC

    Rowlett, Dallas County · TDLR #ACO1305 · licensed until Jan 25, 2028

    Current license

    5.0584 Google reviews

    Call (972) 685-1744WebsiteLicense report

  2. Fix Airx LLC

    Lewisville, Denton County · TDLR #ACO1171 · licensed until Jan 30, 2027

    Current license

    5.0221 Google reviews

    Call (469) 224-7774WebsiteLicense report

  3. DNH Property Inspections PLLC

    Royse City, Rockwall County · TDLR #ACO1322 · licensed until Aug 17, 2028

    Current license

    5.0175 Google reviews

    Call (972) 814-1502WebsiteLicense report

  4. Culley Enviro LLC

    Fort Worth, Tarrant County · TDLR #ACO1131 · licensed until Jan 7, 2028

    Current license

    5.044 Google reviews

    Call (817) 939-1643WebsiteLicense report

  5. DCG Environmental LLC

    Lancaster, Ellis County · TDLR #ACO1126 · licensed until Dec 5, 2027

    Current license

    5.041 Google reviews

    Call (972) 489-8927WebsiteLicense report

  6. Greenworks Service Company

    Dallas, Dallas County · TDLR #ACO1162 · licensed until Jun 6, 2028

    Google listing: GreenWorks Inspections & Engineering

    Current license

    4.93669 Google reviews

    Call (855) 349-6757WebsiteLicense report

  7. Enviro 360

    Colleyville, Tarrant County · TDLR #ACO1274 · licensed until Apr 15, 2027

    Google listing: Inspect360

    Current license

    4.91663 Google reviews

    Call (817) 754-0360WebsiteLicense report

  8. Blackland Home Inspections LLC

    Palmer, Ellis County · TDLR #ACO1266 · licensed until Jan 8, 2027

    Current license

    4.9858 Google reviews

    Call (972) 921-8454WebsiteLicense report

  9. OWL Restoration LLC

    Mansfield, Tarrant County · TDLR #ACO1326 · licensed until Sep 7, 2028

    Current license

    5.018 Google reviews

    Call (817) 717-4668WebsiteLicense report

  10. Castaldo Enterprise LLC

    Flower Mound, Denton County · TDLR #ACO1152 · licensed until Feb 25, 2027

    Google listing: Environmental Testing & Assessment

    Current license

    4.936 Google reviews

    Call (972) 440-5678WebsiteLicense report

Check the license yourself

Licenses can lapse between our updates. Confirm a number before work starts.

Texas mold license check

Plano FAQ

Mold Testing in Plano: common questions

How much does mold testing cost in Plano?

It depends mostly on how much material is affected and how it has to be handled. We don't publish a price for Plano without data to back it; our mold testing cost guide covers Texas price ranges and what changes them. Get written quotes from at least two licensed companies.

Can the same company test for mold and remove it?

Not on the same project. Texas Occupations Code §1958.155 bars a license holder from doing both mold assessment and mold remediation on one project, and bars anyone from owning a stake in both companies on it. A company can hold both licenses and do each on different jobs. Find a licensed mold removal company in Plano.

What happens after mold testing?

If the assessor finds mold that needs removing, they write a remediation protocol. You hire a different licensed removal company to follow it, then the assessor comes back for a clearance check. After it passes, you should receive a Certificate of Mold Damage Remediation within ten days.

How do I check a mold testing company's license?

Search the company name or license number in our Texas mold license check, or on TDLR's own license search. A mold testing company needs a mold assessment company license; its number starts with ACO.

How many licensed mold testing companies are in Plano?

6 licensed mold testing companies have a Plano address, according to TDLR records as of Oct 28, 2026.

Mold Testing elsewhere in the Dallas-Fort Worth area